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To explore the association between the dietary diversity score (DDS) and the prevalence of possible sarcopenia among the elderly.
We conducted this analysis utilizing the cross-sectional data from the Chinese longitudinal healthy longevity survey and happy family study(CLHLS-HF, wave 2018 ). A standard developed by the Asian Working Group for Sarcopenia 2019(AWGS2019) was used to assess the possibility of sarcopenia. We have constructed four new indicators of DDS as follows: total diet, animal-based diet, plant-based diet, and plant-based diet without the consumption of legume products and nuts. We used the Logistic regression analysis to evaluate the association between the DDS of the total diet, animal-based diet, plant-based diet, and plant-based diet without the intake of legume products and nuts and possible sarcopenia. These associations were statistically adjusted for a variety of potential confounders. Sensitivity analysis and subgroup analyses were performed.
The analysis included 2 555 participants (mean age of 84.4 years). 1 244 (48.7％) were male and 1 311 (51.3％) were female. 1 632 elderly people had possible sarcopenia. DDS in the possible sarcopenia group was significantly lower than that in the non-sarcopenia group (P < 0.001). In our study, we found that participants with a higher DDS of the total diet (OR=0.544, 95% CI：0.405-0.732), animal-based diet (OR=0.613, 95% CI：0.423-0.888), and plant-based diet (OR=0.469, 95% CI：0.321-0.684) and plant-based diet without the consumption of legume products and nuts (OR=0.382, 95% CI：0.206-0.709) were at a lower risk of developing sarcopenia. In sensitivity analyses, the associations remained unchanged. In subgroup analysis, total diets, animal-based diet, and plant-based diet were still associated with a reduced risk of possible sarcopenia in the male population, while plant-based diet and plant-based diet without the intake of legume products and nuts were associated with a reduced risk of possible sarcopenia in the female population.
Taking a diversified diet may reduce the risk of developing sarcopenia. According to the findings of this study, adopting a diversified diet might reduce the risk of sarcopenia for older adults.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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